Hydrodynamic bearing, spindle motor and hard disk drive

Details Hydrodynamic bearing, spindle motor and hard disk drive Hydrodynamic bearing, spindle motor and hard disk drive

2007-11-06

2007-11-06

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

Reexamination Certificate

active

10951984

ABSTRACT:
The invention relates to a hydrodynamic bearing, particularly for a spindle motor, comprising a shaft, a thrust plate connected to the shaft and a bearing sleeve closed at one end by a cover plate, the bearing sleeve enclosing the shaft and the thrust plate with a slight radial spacing forming a concentric bearing gap filled with a lubricant. As is already known, the surfaces of the bearing sleeve and the shaft facing each other form at least one radial bearing region and the surfaces of the bearing sleeve, the cover plate and the thrust plate facing each other form at least one axial bearing region. In the hydrodynamic bearing according to the invention, at least one connecting channel is provided which connects a section between the bearing sleeve and the shaft abutting the radial bearing region and a section of the bearing gap abutting the axial bearing region to each other.

REFERENCES:
patent: 4877381 (1989-10-01), Johnson et al.
patent: 6828709 (2004-12-01), Grantz et al.
patent: 2004/0264819 (2004-12-01), Weingord et al.

Affiliated with

Also associated with

Rating

Hydrodynamic bearing, spindle motor and hard disk drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrodynamic bearing, spindle motor and hard disk drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodynamic bearing, spindle motor and hard disk drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3853012